Mechanical motor



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. O.VM. BUNNEL'L & N. M. TENNBY.

.Mechanioal' Motor.

Patented May 18, 1880.

Ill! llllum mnnunnu.

.PETERS. FHO'TO-UTHOGRAPHER, WASHINGTON D C UNITED STATES PATENT OFFICE,

ORVILLE M. BUNNELL, OF AURORA, AND NASON M. TENNEY, OF PLANO,

' ILLINOIS.

MECHANICAL MOTOR.

SPECIFICATION forming part of Letters Patent No. 227,728, dated May 18, 188 0.

Applicationfiled April2,1880.' (ModeL) I I To all whom, it may concern:

Be it known that we, OEvILLE M. BUNNELL, of Aurora, and NASON M. TENNEY, of Plano, both in the county of Kane and State of Illinois, have invented certain new and useful Improvements in Mechanical Motors; and we do hereby declare that the following is a full, clear, and exact description of the invention, which will enable others skilled in the art to which it appertains to make and use the same, referencebeing had to the accompanying drawings, which form a part of this specification, and in which- I Figure l is -a side view, Fig. 2 is a top view, Fig. 3 is a detail view, of the drum and winding mechanism, and Fig. 4 is a longitudinal sectional view, on an enlarged scale, of the Corresponding parts in the several figures are denoted by like letters of reference.

This invention relates to that class of mechanical motors which 'are operated by weights; and it consists in certain improvements in the winding mechanism and inthe governor or speed-regulator, as will be hereinafter more fully described, and particularly pointed out in the claim.

In the drawings hereto annexed, A repremitted by pitman, belt, or otherwise to the pump, churn, or machinery for the operation of which the power is to be utilized.

The drum 0 is divided by an annular flange, K, into two of which is wound the weight-rope L. The latter is passed over a pulley, M, at the top of a derrick, N, built at the rear end of frame A, and carries the weight 0, by which the macompartments, upon one' chine is operated. Upon the other compartment of drum O is arranged a rope or chain, P, Wound in a direction opposite to the weightrope.

It will be seen that when the weight drops it rotates drum O and unwinds the weightrope from the latter, but at the same time it Winds the chain or rope P. When the weight has run down it may be again elevated by pulling the rope I? in such a manner as to unwind it from the drum by rotating the latter, thereby winding the weightrope.

This method of raising the weight we have found more convenient and economical than by crank or otherwise.

When the machine is used for pumping Water for railroad tanks a locomotive may be readily hitched to rope P for the purpose of v raising the weight. When this is not available a span of horses or a capstan may be employed.

It is obvious that the two compartments or divisions of drum 0 may be of different diame- I ter, if so desired.

To regulate the speed of our improved motor we employ what may be termed an atmospheric governor, of the following construction: Qis a cylinder secured upon the sideof frame A and provided with a piston, R. The piston-rod S, for which a suitable guide or hearing, T, is provided, is coupled to a pitman, U, connecting it with a crank-Wheel, V, at the end of shaft J, through the medium of which the piston R is operated. The lower end of cylinder Q has a small opening, W, which may be partly or entirely closed by the point of a thumb-screw, X, adjustable in a ba'il, Y, at the lower end of cylinder Q. When the thumb-screw X iswithdrawn from the opening W little or no atmospheric resistance is offered to the operation of piston R, which consequently does not retard the operation of" the motor. By operating the thumb-screw, however, the resistance maybe increased, thus regulating the speed of the motor. Having thus described our invention, we claim and desire to secure by Letters Patent of the United States- In a mechanical motor, the combination,

with the drum, having two compartments and mounted on the shaft 13, having the Wheel D, and spring-pawl and ratchet E F, of ropes G L,

one passing over an elevated pulley and be 5 ing weighted, the train of gearing attached to the shafts H G J, and atmospheric engine T U V R Q YX, all substantially as specified.

In testimony that we claim the fbregoing as I our own we have hereto affixecl our signatures in presence of two witnesses.

ORVILLE M. BUNN ELL. NASON M. TENN EY.

Witnesses WM. SHEPARDSON, HANNAH SHEPARDSON. 

